Features: Crafted from food grade component with integrated O rings , these water filter adapters secure safe drinking water connection and leak proof performances for worry easy installation. Featuring general compatibility, these fittings seamlessly integrate with systems, refrigerators, coffee makers, and aquarium setups for versatile plumbing solution . Ideal for homeowners, enthusiasts, and aquarium hobbyists seeking stable water line connection across multiple household and commercial appliances. Designed for under sink installations, beverage dispensers, and aquarium equipment requiring strong 3/4" to 1/4" thread conversions in tight spaces. Built with pressure resistant construction, these small adapters offer long term durability and tool easy installation convenience for various piping configurations. Specifications: Component : plastic Size: about 0.64x4.5cm/0.25x1.77inch Package Includes: 2xWater Filter Adapters note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.